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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021 Mathieu Othacehe <othacehe@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu installer dump)
#:use-module (gnu installer utils)
#:use-module (guix build utils)
#:use-module (srfi srfi-11)
#:use-module (ice-9 iconv)
#:use-module (ice-9 match)
#:use-module (ice-9 popen)
#:use-module (ice-9 textual-ports)
#:use-module (web client)
#:use-module (web http)
#:use-module (web response)
#:use-module (webutils multipart)
#:export (%core-dump
prepare-dump
make-dump
send-dump-report))
;; The installer crash dump type.
(define %dump-type "installer-dump")
;; The core dump file.
(define %core-dump "/tmp/installer-core-dump")
(define (result->list result)
"Return the alist for the given RESULT."
(hash-map->list (lambda (k v)
(cons k v))
result))
(define* (prepare-dump key args #:key result)
"Create a crash dump directory. KEY and ARGS represent the thrown error.
RESULT is the installer result hash table. Returns the created directory path."
(define now (localtime (current-time)))
(define dump-dir
(format #f "/tmp/dump.~a"
(strftime "%F.%H.%M.%S" now)))
(mkdir-p dump-dir)
(with-directory-excursion dump-dir
;; backtrace
(call-with-output-file "installer-backtrace"
(lambda (port)
(display-backtrace (make-stack #t) port)
(print-exception port
(stack-ref (make-stack #t) 1)
key args)))
;; installer result
(call-with-output-file "installer-result"
(lambda (port)
(write (result->list result) port)))
;; syslog
(copy-file "/var/log/messages" "syslog")
;; core dump
(when (file-exists? %core-dump)
(copy-file %core-dump "core-dump"))
;; dmesg
(let ((pipe (open-pipe* OPEN_READ "dmesg")))
(call-with-output-file "dmesg"
(lambda (port)
(dump-port pipe port)
(close-pipe pipe)))))
dump-dir)
(define* (make-dump dump-dir file-choices)
"Create a crash dump archive from DUMP-DIR containing FILE-CHOICES.
Returns the archive path."
(define output (string-append (basename dump-dir) ".tar.gz"))
(with-directory-excursion (dirname dump-dir)
(apply system* "tar" "-zcf" output
(map (lambda (f)
(string-append (basename dump-dir) "/" f))
file-choices)))
(canonicalize-path (string-append (dirname dump-dir) "/" output)))
(define* (send-dump-report dump
#:key
(url "https://dump.guix.gnu.org"))
"Turn the DUMP archive into a multipart body and send it to the Guix crash
dump server at URL."
(define (match-boundary kont)
(match-lambda
(('boundary . (? string? b))
(kont b))
(x #f)))
(define (response->string response)
(bytevector->string
(read-response-body response)
"UTF-8"))
(let-values (((body boundary)
(call-with-input-file dump
(lambda (port)
(format-multipart-body
`((,%dump-type . ,port)))))))
(false-if-exception
(response->string
(http-post
(string-append url "/upload")
#:keep-alive? #t
#:streaming? #t
#:headers `((content-type
. (multipart/form-data
(boundary . ,boundary))))
#:body body)))))
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